why does rain and other forms of precipitation sometimes form a long a warm front why?
2007-10-27 07:19:42 · 3 answers · asked by john 1 in Science & Mathematics ➔ Weather
Warm air is over riding cooler air. Warm air along a warm front can bring unstable air.
2007-10-27 08:18:11 · answer #1 · answered by WR 5 · 0⤊ 0⤋
If the warmer air flows actively upwards over the cold airmass below,then it is called warm front.Warm fronts have a gentle slope.Due to steady upglide motion of wam air over a cold wedge,a broad pre-frontal cloud system of stratiform cloud exist ahead of the front. These stratiform clouds give rain and other form of precipitation.
Veering of wind occurs when warm front approaches.Even though the warm air glides over the cold mass,the temperature and the dew point within the cold air gradually rise and pressure falls at an increasing rate.Precipitation usually occurs within a wide belt of some 400 Km ahead of the front.
2007-10-28 00:14:55 · answer #2 · answered by Arasan 7 · 0⤊ 0⤋
Sufficiently moist air at the surface on the warm side of the front is lifted above the cooler surface airmass on the cold side of the warm frontal boundary.
2007-10-27 14:27:39 · answer #3 · answered by cyswxman 7 · 0⤊ 1⤋